Puzzle.



E. l. McFALL.

PUZZLE.

APPLICATION HLED OCT. 15. 1914.

1 1 43,4 1 8. Patented June 15, 1915.

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THE NORRIS PETERS 50.. PHOTO-LITHO.. WASHINGTON, D. C.

EDWARD J'. MOFALL, 0F TARENTUM, PENNSYLVANIA.

PUZZLE.

Specification of Letters Patent.

Patented June 15, 1915.

Application filed October 15, 1914. Serial No. 866,849.

To all whom it may concern Beit known that I, EDWARD J. McFALL, a citizen of the United States, residing at Tarentum, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Puzzles; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to puzzles and one of the principal objects of the invention is to provide a puzzle of simple construction which will be difficult to solve and which ivill be interesting and'amusing as a prob- The foregoing andother objects may be obtained by means of the construction illustrated in the accompanying drawings in which Figure 1 is an edge view of the puzzle. Fig. 2 is a plan view of the same. Fig. 3 is a plan view of the elliptical ring. Fig. 4: is a view showing one of the steps to be taken in starting the puzzle, and Fig. 5 is a view of the part with the ring ready to be removed.

Referring to the drawings the numeral 1 designates a disk of sheet metal, said disk being provided with four angular notches '2, 3, 4, and 5. Connected by a link or ring 6 to the disk 1 upon one side is a rectangular plate, preferably of sheet metal 7 and said plate is provided with rectangular notches 8, 9 and 10. Connected by a link 11 to the opposite side of the disk 1 is 2. rectangular plate 12 provided with marginal notches 18, 1 1 and 15. An'elliptical ring 16, the minor axis 17 of which is of such diameter that when placed in two of the diametrically opposite slots 2 and 5 or 3 and 1 will appear to be immovable from the disk 1. However the ring 16 can be rotated in the notches until the major axis 18 of the ring Will pass over the disk 1.

' In order to solve the puzzle, the ring 16 is placed at the left side of the disk 1 as shown in dotted lines in Fig. 2 and the plate 12 is then folded on to the disk 1 with the notch 14 in coincidence with the notch 4:. The lowerportion of the major axis of the ring 16 is placed in the notches 4 and 14, and is then passed over the corner of the plate 12 to the position shown in Fig. 4. The ring is then pulled down into the notch 15 and can then be removed as shown in Fig. 5. i

From the foregoing it will be obvious that the puzzle made in accordance with this invention appears to be impossible of solution, and is perfectly simple after the key has been given.

What is claimed is 1. A puzzle comprising a disk having, a plurality of notches therein and two rectangular plates connected to said disk by rings or links at the opposite sides thereof, said plates having a plurality of marginal notches therein, and an elliptical ring normally connected to the puzzle in between the disk and one of the plates.

2. In apuzzle comprising a centrally disposed disk having a plurality of notches in the periphery thereof, a rectangular plate connected by links or rings to each of the opposite sides of said disk, said plates having a plurality of marginal notches therein and an elliptical ring mounted between the disk and one of the plates, either of said plates adapted to be folded on the disk to bring into coincidence a notch on one side thereof with a notch on the disk, said ring adapted to be disposed in said notches and to be swung Within the notches over the corner of the plate and pushed down into a notch on the plate for removal.

In testimony whereof I affix my signature in presence of two witnesses.

EDWARD J. MoFALL.

Witnesses:

C. N. REED, THos. J. KEEFE.

G'opies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. a 

